eyelidlower eyelidA tetrapod's eye usually has one or more eyelids that can move across its surface and protect and cleanse it. The eye of lissamphibians has a stationary upper eyelid but a movable and transparent lower one.[well established][VHOG]AAO:0010349EHDAA2:0001015EHDAA:9041EMAPA:17831FMA:54442MA:0001263OpenCyc:Mx4rvW6GtJwpEbGdrcN5Y29ycAUBERON:0001713UMLS:C0229258VHOG:0000388XAO:0000007inferior eyelidpalpebra inferioruberon